[OE-core][kirkstone v3 16/19] curl: patch CVE-2026-3783

Yoann Congal
2026-04-07T16:16:35Z

From: Vijay Anusuri <vanusuri@mvista.com>

CVE-2026-3783-pre1.patch is dependency patch for CVE-2026-3783.patch

cherry picked from upstream commit:
https://github.com/curl/curl/commit/d7b970e46ba29a7e558e21d19f485977ffed6266
https://github.com/curl/curl/commit/e3d7401a32a46516c9e5ee877

Reference: https://curl.se/docs/CVE-2026-3783.html

Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
---
.../curl/curl/CVE-2026-3783-pre1.patch | 66 ++++++++
.../curl/curl/CVE-2026-3783.patch | 157 ++++++++++++++++++
meta/recipes-support/curl/curl_7.82.0.bb | 2 +
3 files changed, 225 insertions(+)
create mode 100644 meta/recipes-support/curl/curl/CVE-2026-3783-pre1.patch
create mode 100644 meta/recipes-support/curl/curl/CVE-2026-3783.patch

diff --git a/meta/recipes-support/curl/curl/CVE-2026-3783-pre1.patch b/meta/recipes-support/curl/curl/CVE-2026-3783-pre1.patch
new file mode 100644
index 00000000000..746e5d9ab6c
--- /dev/null
+++ b/meta/recipes-support/curl/curl/CVE-2026-3783-pre1.patch
@@ -0,0 +1,66 @@
+From d7b970e46ba29a7e558e21d19f485977ffed6266 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Fri, 29 Apr 2022 22:56:47 +0200
+Subject: [PATCH] http: move Curl_allow_auth_to_host()
+
+It was mistakenly put within the CURL_DISABLE_HTTP_AUTH #ifdef
+
+Reported-by: Michael Olbrich
+Fixes #8772
+Closes #8775
+
+Upstream-Status: Backport [https://github.com/curl/curl/commit/d7b970e46ba29a7e558e21d19f485977ffed6266]
+CVE: CVE-2026-3783 #Dependency Patch
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ lib/http.c | 30 +++++++++++++++---------------
+ 1 file changed, 15 insertions(+), 15 deletions(-)
+
+diff --git a/lib/http.c b/lib/http.c
+index 0d5c449bc72a..b215307dcaaa 100644
+--- a/lib/http.c
++++ b/lib/http.c
+@@ -651,6 +651,21 @@ CURLcode Curl_http_auth_act(struct Curl_easy *data)
+ return result;
+ }
+
++/*
++ * Curl_allow_auth_to_host() tells if authentication, cookies or other
++ * "sensitive data" can (still) be sent to this host.
++ */
++bool Curl_allow_auth_to_host(struct Curl_easy *data)
++{
++ struct connectdata *conn = data->conn;
++ return (!data->state.this_is_a_follow ||
++ data->set.allow_auth_to_other_hosts ||
++ (data->state.first_host &&
++ strcasecompare(data->state.first_host, conn->host.name) &&
++ (data->state.first_remote_port == conn->remote_port) &&
++ (data->state.first_remote_protocol == conn->handler->protocol)));
++}
++
+ #ifndef CURL_DISABLE_HTTP_AUTH
+ /*
+ * Output the correct authentication header depending on the auth type
+@@ -775,21 +790,6 @@ output_auth_headers(struct Curl_easy *data,
+ return CURLE_OK;
+ }
+
+-/*
+- * Curl_allow_auth_to_host() tells if authentication, cookies or other
+- * "sensitive data" can (still) be sent to this host.
+- */
+-bool Curl_allow_auth_to_host(struct Curl_easy *data)
+-{
+- struct connectdata *conn = data->conn;
+- return (!data->state.this_is_a_follow ||
+- data->set.allow_auth_to_other_hosts ||
+- (data->state.first_host &&
+- strcasecompare(data->state.first_host, conn->host.name) &&
+- (data->state.first_remote_port == conn->remote_port) &&
+- (data->state.first_remote_protocol == conn->handler->protocol)));
+-}
+-
+ /**
+ * Curl_http_output_auth() setups the authentication headers for the
+ * host/proxy and the correct authentication
diff --git a/meta/recipes-support/curl/curl/CVE-2026-3783.patch b/meta/recipes-support/curl/curl/CVE-2026-3783.patch
new file mode 100644
index 00000000000..769198d6883
--- /dev/null
+++ b/meta/recipes-support/curl/curl/CVE-2026-3783.patch
@@ -0,0 +1,157 @@
+From e3d7401a32a46516c9e5ee877e613e62ed35bddc Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Fri, 6 Mar 2026 23:13:07 +0100
+Subject: [PATCH] http: only send bearer if auth is allowed
+
+Verify with test 2006
+
+Closes #20843
+
+Curl_auth_allowed_to_host() function got renamed from
+Curl_allow_auth_to_host() by the commit
+https://github.com/curl/curl/commit/72652c0613d37ce18e99cca17a42887f12ad43da
+
+Current curl version 7.82.0 has function Curl_allow_auth_to_host()
+
+Upstream-Status: Backport [https://github.com/curl/curl/commit/e3d7401a32a46516c9e5ee877]
+CVE: CVE-2026-3783
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ lib/http.c | 1 +
+ tests/data/Makefile.inc | 2 +-
+ tests/data/test2006 | 98 +++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 100 insertions(+), 1 deletion(-)
+ create mode 100644 tests/data/test2006
+
+diff --git a/lib/http.c b/lib/http.c
+index 691091b..6acd537 100644
+--- a/lib/http.c
++++ b/lib/http.c
+@@ -757,6 +757,7 @@ output_auth_headers(struct Curl_easy *data,
+ if(authstatus->picked == CURLAUTH_BEARER) {
+ /* Bearer */
+ if((!proxy && data->set.str[STRING_BEARER] &&
++ Curl_allow_auth_to_host(data) &&
+ !Curl_checkheaders(data, STRCONST("Authorization")))) {
+ auth = "Bearer";
+ result = http_output_bearer(data);
+diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc
+index ad41a5e..e641cb8 100644
+--- a/tests/data/Makefile.inc
++++ b/tests/data/Makefile.inc
+@@ -221,7 +221,7 @@ test1916 test1917 test1918 \
+ \
+ test1933 test1934 test1935 test1936 test1937 test1938 test1939 \
+ \
+-test2000 test2001 test2002 test2003 test2004 \
++test2000 test2001 test2002 test2003 test2004 test2006 \
+ \
+ test2023 \
+ test2024 test2025 test2026 test2027 test2028 test2029 test2030 test2031 \
+diff --git a/tests/data/test2006 b/tests/data/test2006
+new file mode 100644
+index 0000000..200d30a
+--- /dev/null
++++ b/tests/data/test2006
+@@ -0,0 +1,98 @@
++<?xml version="1.0" encoding="US-ASCII"?>
++<testcase>
++<info>
++<keywords>
++netrc
++HTTP
++</keywords>
++</info>
++# Server-side
++<reply>
++
++HTTP/1.1 301 Follow this you fool
++Date: Tue, 09 Nov 2010 14:49:00 GMT
++Server: test-server/fake
++Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
++ETag: "21025-dc7-39462498"
++Accept-Ranges: bytes
++Content-Length: 6
++Connection: close
++Location: http://b.com/%TESTNUMBER0002
++
++-foo-
++
++
++<data2 crlf="headers">
++HTTP/1.1 200 OK
++Date: Tue, 09 Nov 2010 14:49:00 GMT
++Server: test-server/fake
++Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
++ETag: "21025-dc7-39462498"
++Accept-Ranges: bytes
++Content-Length: 7
++Connection: close
++
++target
++</data2>
++
++<datacheck crlf="headers">
++HTTP/1.1 301 Follow this you fool
++Date: Tue, 09 Nov 2010 14:49:00 GMT
++Server: test-server/fake
++Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
++ETag: "21025-dc7-39462498"
++Accept-Ranges: bytes
++Content-Length: 6
++Connection: close
++Location: http://b.com/%TESTNUMBER0002
++
++HTTP/1.1 200 OK
++Date: Tue, 09 Nov 2010 14:49:00 GMT
++Server: test-server/fake
++Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
++ETag: "21025-dc7-39462498"
++Accept-Ranges: bytes
++Content-Length: 7
++Connection: close
++
++target
++</datacheck>
++</reply>
++
++# Client-side
++<client>
++<server>
++http
++</server>
++<features>
++proxy
++</features>
++<name>
++.netrc default with redirect plus oauth2-bearer
++</name>
++<command>
++--netrc --netrc-file %LOGDIR/netrc%TESTNUMBER --oauth2-bearer SECRET_TOKEN -L -x http://%HOSTIP:%HTTPPORT/ http://a.com/
++</command>
++<file name="%LOGDIR/netrc%TESTNUMBER" >
++default login testuser password testpass
++</file>
++</client>
++
++<verify>
++<protocol crlf="headers">
++GET http://a.com/ HTTP/1.1
++Host: a.com
++Authorization: Bearer SECRET_TOKEN
++User-Agent: curl/%VERSION
++Accept: */*
++Proxy-Connection: Keep-Alive
++
++GET http://b.com/%TESTNUMBER0002 HTTP/1.1
++Host: b.com
++User-Agent: curl/%VERSION
++Accept: */*
++Proxy-Connection: Keep-Alive
++
++</protocol>
++</verify>
++</testcase>
+--
+2.25.1
+
diff --git a/meta/recipes-support/curl/curl_7.82.0.bb b/meta/recipes-support/curl/curl_7.82.0.bb
index 0e107f1e753..f50af1d4722 100644
--- a/meta/recipes-support/curl/curl_7.82.0.bb
+++ b/meta/recipes-support/curl/curl_7.82.0.bb
@@ -73,6 +73,8 @@ SRC_URI = "https://curl.se/download/${BP}.tar.xz \
file://CVE-2025-14524.patch \
file://CVE-2026-1965-1.patch \
file://CVE-2026-1965-2.patch \
+ file://CVE-2026-3783-pre1.patch \
+ file://CVE-2026-3783.patch \
"
SRC_URI[sha256sum] = "0aaa12d7bd04b0966254f2703ce80dd5c38dbbd76af0297d3d690cdce58a583c"